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带附属物钢管塔的体型系数的计算取值,我国的国家标准《高耸结构设计规范》是单独计算塔架以及附属物的体型系数,然后将两者的风荷载简单相加。运用兴起的CFD数值模拟方法对带微波锅和四偶极板天线的钢管塔进行数值风洞模拟,并将结果与我国现有《高耸结构设计规范》和《日本荷载规范》进行比较,得出结果:微波锅与四偶极板在塔架影响下的体型系数数值模拟结果均高于我国规范值而小于日本规范值,这应该引起工程设计的注意。
The calculated value of the body coefficient of the steel pipe tower with appendages. The national standard “high-rise structure design code” of our country calculates the figure-of-body coefficient of the tower and its appendages separately, and then simply adds the wind loads of the two. Numerical CFD simulation of steel tube tower with microwave dish and quad dipole antenna is carried out by using the numerical simulation method of rising CFD. The results are compared with the existing “Code for Design of High-rise Structure” and “Japan Load Code” Results: The numerical simulation results of the body coefficient of the microwave pot and the four-dipole plate under the influence of the tower are higher than the standard values in China and less than the Japanese standard values, which should attract the attention of engineering design.